C1272 語2:19ニュースレポートイギリス英語2026年7月10日公開 · 2026年7月10日更新

完全音声プレビュー

0:00

A landmark genomic study published in the European Journal of Human Genetics has demonstrated that copy number variant analysis through exome sequencing can substantially enhance diagnostic yield for developmental disorders in African populations.

The research, conducted under the Deciphering Developmental Disorders in Africa initiative, employed two well-established bioinformatics tools utilizing distinct algorithmic approaches to identify copy number variants from existing exome sequencing data.

Researchers emphasized that this methodology could prove particularly transformative in resource-limited healthcare environments across the continent.

The DDD-Africa study was initiated with the explicit aim of implementing genomic medicine solutions for rare developmental disorders in Africa.

The project focused primarily on cohorts recruited from South Africa and the Democratic Republic of Congo.

Ethics approval was obtained from multiple institutions, including the University of the Witwatersrand, the University of Pretoria, and the University of Kinshasa, thereby ensuring rigorous ethical oversight throughout the investigation.

The cohort comprised 505 probands diagnosed with developmental disorders who had received no prior genetic diagnosis, along with their parents where available.

The average age of participants was 7.2 years, with males constituting sixty-two percent of the sample.

Recruitment yielded 358 participants from South Africa and 147 from the Democratic Republic of Congo, encompassing 239 trios, 235 duos, and 14 singletons.

#10

Were it not for advances in bioinformatics, extracting copy number variant data from exome sequencing would remain prohibitively challenging.

#11

The study's findings suggest that exome sequencing-based approaches could serve as a viable first-tier genetic diagnostic test for developmental disorders across Africa.

#12

Should these methods gain wider adoption, they would significantly reduce the financial burden associated with separate genomic analyses in regions where healthcare resources are scarce.

フレーズ一覧 (4 個)

種類タグ、二言語の定義、使い方の説明、例文を含むフレーズ。

diagnostic yield

technical term

The likelihood that a medical test or procedure will provide the information needed to establish a diagnosis.

診断率、診断検出率

解説： 医学および遺伝子検査の分野において、特定の検査方法が病因や確定診断例をうまく見つけ出す割合を指し、検査ツールの有効性を評価する重要な指標です。

例： The introduction of next-generation sequencing has significantly increased the diagnostic yield for rare genetic diseases.

exome sequencing

technical term

A genomic technique for sequencing all of the protein-coding regions of genes in a genome.

エクソームシーケンシング

解説： タンパク質をコードする領域（エクソン）に焦点を当てて遺伝子の配列を決定する遺伝子検査技術であり、全ゲノムシーケンシングと比較して費用対効果が高いです。

例： Exome sequencing is widely used in clinical settings to identify mutations responsible for rare inherited disorders.

copy number variant

technical term

A phenomenon in which sections of the genome are repeated and the number of repeats in the genome varies between individuals.

コピー数多型

解説： ゲノムの特定の領域のコピー数が増加または減少する変異現象を指し、多くの遺伝性疾患や発達遅延の重要な原因となっています。

例： Copy number variant analysis can reveal genetic deletions or duplications that standard sequencing might miss.

Were it not for

idiom

If it were not for; used to say that something would happen or be true if another thing did not prevent it.

もし～がなければ、～がなかったならば...

解説： これは高度な仮定法の倒置構文（元は If it were not for）であり、ある過去または現在の事実が、ある結果の唯一の決定的要因であることを表します。やや形式的で、書き言葉的です。

例： Were it not for your timely assistance, we would not have completed the project on schedule.

Copy number variant analysis by exome sequencing is an effective approach to optimize diagnostic...アフリカの発達障害研究におけるゲノム医学の突破口

完全音声プレビュー

学習モード

学習コンテンツ

語彙リスト (9 語)

フレーズ一覧 (4 個)

おすすめコース

受講者レビュー

語彙リスト (9 語)

フレーズ一覧 (4 個)

完全音声プレビュー

学習モード

学習コンテンツ

語彙リスト (9 語)

フレーズ一覧 (4 個)

おすすめコース

New research links prenatal exposure to Pfas to later development of PMOS新たな研究により、出生前のPFAS曝露とその後のPMOS発症との関連が明らかに

Trial of multi-cancer blood test among 142,000 NHS patients fails to meet main aim14万2,000人のNHS患者を対象とした多がん血液検査の試験、主要目的の達成に至らず

What is immunotherapy and how does it treat cancer and other conditions?免疫療法とは何か？がんやその他の疾患をどのように治療するのか

Households outshine business in Australia’s rooftop solar revolution, report findsオーストラリアの屋根上太陽光革命、家庭が企業を上回る：報告書

受講者レビュー

語彙リスト (9 語)

フレーズ一覧 (4 個)